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<h3>Overview</h3>
<p>Ramosetron is a potent <strong>5-HT3 receptor antagonist</strong> used in pharmaceutical manufacturing. Its core synthesis involves complex heterocyclic coupling. Molecular formula: C<sub>19</sub>H<sub>20</sub>N<sub>4</sub>O<sub>2</sub>; CAS No.: 116736-38-2.</p>
<h3>Application</h3>
<ul>
<li><strong>Gastrointestinal Therapeutics:</strong> Treatment of severe irritable bowel syndrome with diarrhea (IBS-D) and postoperative nausea/vomiting.</li>
<li><strong>Pharmaceutical Formulation:</strong> Active Pharmaceutical Ingredient (API) for tablet and capsule production.</li>
</ul>
<h3>Precautions</h3>
<p>Strictly contraindicated for patients with history of severe constipation or urinary retention. Store API in cool, dry conditions below 25°C away from light to maintain chemical stability.</p>